SOLUTION: in ∆DEF, the sum of the measures of <D and <E is 110. The sum of the measures of <E and <F is 150. Find the sum of the measures of <D and <F
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Question 362199: in ∆DEF, the sum of the measures of
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
1.
2.
.
.
.
For every triangle,
Substitute from eq. 1,
degrees
Substitute from eq. 2,
degrees
Then from eq. 1,
degrees
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